干旱区生态环境知识资源中心(Arid): The relationship between species diversity and functional diversity along aridity gradients in semi-arid rangeland

Arid

DOI	10.1016/j.jaridenv.2021.104632
	The relationship between species diversity and functional diversity along aridity gradients in semi-arid rangeland
	Dovrat, Guy; Meron, Ehud; Shachak, Moshe; Moshe, Yosef; Osem, Yagil
通讯作者	Dovrat, G (corresponding author), Agr Res Org, Dept Nat Resources, Newe Yaar Res Ctr, Volcani Inst, POB 1021, IL-30095 Ramat Yishay, Israel.
来源期刊	JOURNAL OF ARID ENVIRONMENTS
ISSN	0140-1963
EISSN	1095-922X
出版年	2021
卷号	195
英文摘要	The relationship between community species diversity and functional diversity (SFDR) was suggested to reflect the degree of overlap in species functions and highlight the effects of environmental filters on community composition. Using a novel approach, categorizing individual plants into functional groups according to their plant biomass production (function level) and regardless of their taxonomic attribution, we tested the pattern of SFDR (e.g., linear correlation or other type) in a semiarid, annual plant community. Species abundance and biomass were monitored over four years among neighbouring topographic sites representing a range of aridity levels in the Northern Negev, Israel. All sampled plant individuals collected at flowering season were weighted and classified into ten functional groups according to their above-ground biomass. Functional group richness and species richness were calculated for each of the 16 research plots during the four research years. We examined the relationship between species richness and functional richness and the effects of year and topographic site on species richness within each of the functional groups. Species and functional richness varied considerably among years and topographic sites. Functional richness was found to be positively related to species richness throughout the entire studied aridity range. Under relatively humid conditions, species richness was high, and increasing aridity led mainly to loss of functional redundancy. Lost taxa were typically rare, large sized or drought intolerant species with low functional plasticity. Conversely, under relatively dry conditions, species richness was low and further increasing aridity led more to loss of functional richness than to loss of species richness. Typical species that drove this pattern were abundant, medium to low sized and drought tolerant species with high functional plasticity. These species decreased their plant biomass production while guaranteeing their existence under extreme drought.
英文关键词	Biodiversity Community Drought Functional redundancy Plant size
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000703848900003
WOS关键词	LAND-USE INTENSIFICATION ; ENVIRONMENTAL FILTERS ; RAINFALL VARIABILITY ; ECOSYSTEM FUNCTION ; REDUNDANCY ; TRAITS ; PRODUCTIVITY ; BIODIVERSITY ; DISTURBANCE ; RICHNESS
WOS类目	Ecology ; Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
来源机构	Ben-Gurion University of the Negev
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/363763
作者单位	[Dovrat, Guy] Agr Res Org, Dept Nat Resources, Newe Yaar Res Ctr, Volcani Inst, POB 1021, IL-30095 Ramat Yishay, Israel; [Meron, Ehud] Ben Gurion Univ Negev, Blaustein Inst Desert Res, Dept Solar Energy & Environm Phys, Sede Boqer Campus, IL-84990 Sede Boqer, Israel; [Meron, Ehud] Ben Gurion Univ Negev, Phys Dept, IL-84105 Beer Sheva, Israel; [Shachak, Moshe] Ben Gurion Univ Negev, Blaustein Inst Desert Res, Mitrani Dept Desert Ecol, Sede Boqer Campus, IL-84990 Sede Boqer, Israel; [Moshe, Yosef; Osem, Yagil] Agr Res Org, Dept Nat Resources, Volcani Inst, IL-50250 Bet Dagan, Israel
推荐引用方式 GB/T 7714	Dovrat, Guy,Meron, Ehud,Shachak, Moshe,et al. The relationship between species diversity and functional diversity along aridity gradients in semi-arid rangeland[J]. Ben-Gurion University of the Negev,2021,195.
APA	Dovrat, Guy,Meron, Ehud,Shachak, Moshe,Moshe, Yosef,&Osem, Yagil.(2021).The relationship between species diversity and functional diversity along aridity gradients in semi-arid rangeland.JOURNAL OF ARID ENVIRONMENTS,195.
MLA	Dovrat, Guy,et al."The relationship between species diversity and functional diversity along aridity gradients in semi-arid rangeland".JOURNAL OF ARID ENVIRONMENTS 195(2021).